Ink jet printer having ink maintenance system

Details Ink jet printer having ink maintenance system Ink jet printer having ink maintenance system

2009-05-20

2011-10-25

Fidler, Shelby (Department: 2861)

Incremental printing of symbolic information

Ink jet

Controller

C347S010000, C347S084000, C347S085000, C347S089000

Reexamination Certificate

active

08042896

ABSTRACT:
An ink jet printer performs a print process by ejecting ink for each of a plurality of ink colors. When a predetermined first circulation time elapses after starting the ink circulation, an ink agitating operation drive signal generation unit applies an ink agitating operation drive signal to an ink ejecting unit set operable to eject an ink, which has a predetermined nature, for a first ink agitating operation time in a first period, and applies the ink agitating operation drive signal to an ink ejecting unit set operable to eject an ink, which has not the predetermined nature, for a second ink agitating operation time in a second period which is shorter than the first period. It is therefore possible to perform maintenance effectively in advance of starting the print process in accordance with the nature of ink.

REFERENCES:
patent: 7140724 (2006-11-01), Otis et al.
patent: 7416288 (2008-08-01), Takatsuka
patent: 7770990 (2010-08-01), Nagashima
patent: 11-342634 (1999-12-01), None
patent: 2005-41050 (2005-02-01), None

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